preprocS2

An R package dedicated to basic preprocessing of Sentinel-2 Level-2A reflectance images

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preprocS2

The goal of preprocS2 is to provide a common framework for teh preprocessing of Level-2A Sentinel-2 images. Sentinel-2 L2A images can be produced or obtained from various data hubs or atmospheric correction methods. preprocS2 provides a unique function to read, crop, resample the original image directory, and write it as a raster stack.

Installation

After installing package devtools, you need to install the package preprocS2 with the following command line in R session:

devtools::install_gitlab('jbferet/preprocS2')

Example

A tutorial vignette is available here.

This is a basic example which shows you how to solve a common problem:

library(preprocS2)
## Registered S3 method overwritten by 'geojsonsf':
##   method        from   
##   print.geojson geojson
## basic example code

What is special about using README.Rmd instead of just README.md? You can include R chunks like so:

summary(cars)
##      speed           dist       
##  Min.   : 4.0   Min.   :  2.00  
##  1st Qu.:12.0   1st Qu.: 26.00  
##  Median :15.0   Median : 36.00  
##  Mean   :15.4   Mean   : 42.98  
##  3rd Qu.:19.0   3rd Qu.: 56.00  
##  Max.   :25.0   Max.   :120.00

You’ll still need to render README.Rmd regularly, to keep README.md up-to-date. devtools::build_readme() is handy for this. You could also use GitHub Actions to re-render README.Rmd every time you push. An example workflow can be found here: https://github.com/r-lib/actions/tree/master/examples.

You can also embed plots, for example:

In that case, don’t forget to commit and push the resulting figure files, so they display on GitHub and CRAN.